1 Reply Latest reply on Aug 17, 2018 10:36 AM by MichaelF_56

    CYW920719 User Guide states "VDDIO must be greater or equal to VBAT". Why the note?

    GrCa_1363456

      CYW920719 User Guide states "VDDIO must be greater or equal to VBAT" in a note on page 29 at the end of Section 3.2, reference http://www.cypress.com/file/411346/download.

      This Note contradicts the possible settings for VDDIO and VBAT stated in Table 12 of the CYW20719 datasheet which allows VDDIO to be as low as 1.76v while VBAT can only drop to 1.9. Reference CYW20719 data sheet @ http://www.cypress.com/documentation/datasheets/cyw20719-enhanced-low-power-bredrble-bluetooth-50-soc

      It appears from the data sheet that VDDIO and BAT are independent - is this not true?

       

      Why the note?